source3/rpc_server/srv_dfs_nt.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines for Dfs
   4  *  Copyright (C) Shirish Kalele        2000.
   5  *  Copyright (C) Jeremy Allison        2001.
   6  *  Copyright (C) Jelmer Vernooij       2005.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 /* This is the implementation of the dfs pipe. */
  24
  25 #include "includes.h"
  26
  27 #undef DBGC_CLASS
  28 #define DBGC_CLASS DBGC_MSDFS
  29
  30 /* This function does not return a WERROR or NTSTATUS code but rather 1 if
  31    dfs exists, or 0 otherwise. */
  32
  33 uint32 _dfs_GetManagerVersion(pipes_struct *p, NETDFS_Q_DFS_GETMANAGERVERSION *q_u, NETDFS_R_DFS_GETMANAGERVERSION *r_u)
  34 {
  35         if(lp_host_msdfs())
  36                 return 1;
  37         else
  38                 return 0;
  39 }
  40
  41 WERROR _dfs_Add(pipes_struct *p, NETDFS_Q_DFS_ADD* q_u, NETDFS_R_DFS_ADD *r_u)
  42 {
  43         struct current_user user;
  44         struct junction_map jn;
  45         struct referral* old_referral_list = NULL;
  46         BOOL exists = False;
  47
  48         pstring dfspath, servername, sharename;
  49         pstring altpath;
  50
  51         get_current_user(&user,p);
  52
  53         if (user.ut.uid != 0) {
  54                 DEBUG(10,("_dfs_add: uid != 0. Access denied.\n"));
  55                 return WERR_ACCESS_DENIED;
  56         }
  57
  58         unistr2_to_ascii(dfspath, &q_u->path, sizeof(dfspath)-1);
  59         unistr2_to_ascii(servername, &q_u->server, sizeof(servername)-1);
  60         unistr2_to_ascii(sharename, &q_u->share, sizeof(sharename)-1);
  61
  62         DEBUG(5,("init_reply_dfs_add: Request to add %s -> %s\\%s.\n",
  63                 dfspath, servername, sharename));
  64
  65         pstrcpy(altpath, servername);
  66         pstrcat(altpath, "\\");
  67         pstrcat(altpath, sharename);
  68
  69         /* The following call can change the cwd. */
  70         if(get_referred_path(p->mem_ctx, dfspath, &jn, NULL, NULL)) {
  71                 exists = True;
  72                 jn.referral_count += 1;
  73                 old_referral_list = jn.referral_list;
  74         } else {
  75                 jn.referral_count = 1;
  76         }
  77
  78         vfs_ChDir(p->conn,p->conn->connectpath);
  79
  80         jn.referral_list = TALLOC_ARRAY(p->mem_ctx, struct referral, jn.referral_count);
  81         if(jn.referral_list == NULL) {
  82                 DEBUG(0,("init_reply_dfs_add: talloc failed for referral list!\n"));
  83                 return WERR_DFS_INTERNAL_ERROR;
  84         }
  85
  86         if(old_referral_list) {
  87                 memcpy(jn.referral_list, old_referral_list, sizeof(struct referral)*jn.referral_count-1);
  88         }
  89
  90         jn.referral_list[jn.referral_count-1].proximity = 0;
  91         jn.referral_list[jn.referral_count-1].ttl = REFERRAL_TTL;
  92
  93         pstrcpy(jn.referral_list[jn.referral_count-1].alternate_path, altpath);
  94
  95         if(!create_msdfs_link(&jn, exists)) {
  96                 vfs_ChDir(p->conn,p->conn->connectpath);
  97                 return WERR_DFS_CANT_CREATE_JUNCT;
  98         }
  99         vfs_ChDir(p->conn,p->conn->connectpath);
 100
 101         return WERR_OK;
 102 }
 103
 104 WERROR _dfs_Remove(pipes_struct *p, NETDFS_Q_DFS_REMOVE *q_u,
 105                    NETDFS_R_DFS_REMOVE *r_u)
 106 {
 107         struct current_user user;
 108         struct junction_map jn;
 109         BOOL found = False;
 110
 111         pstring dfspath, servername, sharename;
 112         pstring altpath;
 113
 114         get_current_user(&user,p);
 115
 116         if (user.ut.uid != 0) {
 117                 DEBUG(10,("_dfs_remove: uid != 0. Access denied.\n"));
 118                 return WERR_ACCESS_DENIED;
 119         }
 120
 121         unistr2_to_ascii(dfspath, &q_u->path, sizeof(dfspath)-1);
 122         if(q_u->ptr0_server) {
 123                 unistr2_to_ascii(servername, &q_u->server, sizeof(servername)-1);
 124         }
 125
 126         if(q_u->ptr0_share) {
 127                 unistr2_to_ascii(sharename, &q_u->share, sizeof(sharename)-1);
 128         }
 129
 130         if(q_u->ptr0_server && q_u->ptr0_share) {
 131                 pstrcpy(altpath, servername);
 132                 pstrcat(altpath, "\\");
 133                 pstrcat(altpath, sharename);
 134                 strlower_m(altpath);
 135         }
 136
 137         DEBUG(5,("init_reply_dfs_remove: Request to remove %s -> %s\\%s.\n",
 138                 dfspath, servername, sharename));
 139
 140         if(!get_referred_path(p->mem_ctx, dfspath, &jn, NULL, NULL)) {
 141                 return WERR_DFS_NO_SUCH_VOL;
 142         }
 143
 144         /* if no server-share pair given, remove the msdfs link completely */
 145         if(!q_u->ptr0_server && !q_u->ptr0_share) {
 146                 if(!remove_msdfs_link(&jn)) {
 147                         vfs_ChDir(p->conn,p->conn->connectpath);
 148                         return WERR_DFS_NO_SUCH_VOL;
 149                 }
 150                 vfs_ChDir(p->conn,p->conn->connectpath);
 151         } else {
 152                 int i=0;
 153                 /* compare each referral in the list with the one to remove */
 154                 DEBUG(10,("altpath: .%s. refcnt: %d\n", altpath, jn.referral_count));
 155                 for(i=0;i<jn.referral_count;i++) {
 156                         pstring refpath;
 157                         pstrcpy(refpath,jn.referral_list[i].alternate_path);
 158                         trim_char(refpath, '\\', '\\');
 159                         DEBUG(10,("_dfs_remove:  refpath: .%s.\n", refpath));
 160                         if(strequal(refpath, altpath)) {
 161                                 *(jn.referral_list[i].alternate_path)='\0';
 162                                 DEBUG(10,("_dfs_remove: Removal request matches referral %s\n",
 163                                         refpath));
 164                                 found = True;
 165                         }
 166                 }
 167
 168                 if(!found) {
 169                         return WERR_DFS_NO_SUCH_SHARE;
 170                 }
 171
 172                 /* Only one referral, remove it */
 173                 if(jn.referral_count == 1) {
 174                         if(!remove_msdfs_link(&jn)) {
 175                                 vfs_ChDir(p->conn,p->conn->connectpath);
 176                                 return WERR_DFS_NO_SUCH_VOL;
 177                         }
 178                 } else {
 179                         if(!create_msdfs_link(&jn, True)) {
 180                                 vfs_ChDir(p->conn,p->conn->connectpath);
 181                                 return WERR_DFS_CANT_CREATE_JUNCT;
 182                         }
 183                 }
 184                 vfs_ChDir(p->conn,p->conn->connectpath);
 185         }
 186
 187         return WERR_OK;
 188 }
 189
 190 static BOOL init_reply_dfs_info_1(struct junction_map* j, NETDFS_DFS_INFO1* dfs1)
 191 {
 192         pstring str;
 193         dfs1->ptr0_path = 1;
 194         slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 195                 j->service_name, j->volume_name);
 196         DEBUG(5,("init_reply_dfs_info_1: initing entrypath: %s\n",str));
 197         init_unistr2(&dfs1->path,str,UNI_STR_TERMINATE);
 198         return True;
 199 }
 200
 201 static BOOL init_reply_dfs_info_2(struct junction_map* j, NETDFS_DFS_INFO2* dfs2)
 202 {
 203         pstring str;
 204         dfs2->ptr0_path = 1;
 205         slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 206                 j->service_name, j->volume_name);
 207         init_unistr2(&dfs2->path, str, UNI_STR_TERMINATE);
 208         dfs2->ptr0_comment = 0;
 209         dfs2->state = 1; /* set up state of dfs junction as OK */
 210         dfs2->num_stores = j->referral_count;
 211         return True;
 212 }
 213
 214 static BOOL init_reply_dfs_info_3(TALLOC_CTX *ctx, struct junction_map* j, NETDFS_DFS_INFO3* dfs3)
 215 {
 216         int ii;
 217         pstring str;
 218         dfs3->ptr0_path = 1;
 219         if (j->volume_name[0] == '\0')
 220                 slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s",
 221                         global_myname(), j->service_name);
 222         else
 223                 slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 224                         j->service_name, j->volume_name);
 225
 226         init_unistr2(&dfs3->path, str, UNI_STR_TERMINATE);
 227         dfs3->ptr0_comment = 1;
 228         init_unistr2(&dfs3->comment, "", UNI_STR_TERMINATE);
 229         dfs3->state = 1;
 230         dfs3->num_stores = dfs3->size_stores = j->referral_count;
 231         dfs3->ptr0_stores = 1;
 232
 233         /* also enumerate the stores */
 234         dfs3->stores = TALLOC_ARRAY(ctx, NETDFS_DFS_STORAGEINFO, j->referral_count);
 235         if (!dfs3->stores)
 236                 return False;
 237
 238         memset(dfs3->stores, '\0', j->referral_count * sizeof(NETDFS_DFS_STORAGEINFO));
 239
 240         for(ii=0;ii<j->referral_count;ii++) {
 241                 char* p;
 242                 pstring path;
 243                 NETDFS_DFS_STORAGEINFO* stor = &(dfs3->stores[ii]);
 244                 struct referral* ref = &(j->referral_list[ii]);
 245
 246                 pstrcpy(path, ref->alternate_path);
 247                 trim_char(path,'\\','\0');
 248                 p = strrchr_m(path,'\\');
 249                 if(p==NULL) {
 250                         DEBUG(4,("init_reply_dfs_info_3: invalid path: no \\ found in %s\n",path));
 251                         continue;
 252                 }
 253                 *p = '\0';
 254                 DEBUG(5,("storage %d: %s.%s\n",ii,path,p+1));
 255                 stor->state = 2; /* set all stores as ONLINE */
 256                 init_unistr2(&stor->server, path, UNI_STR_TERMINATE);
 257                 init_unistr2(&stor->share,  p+1, UNI_STR_TERMINATE);
 258                 stor->ptr0_server = stor->ptr0_share = 1;
 259         }
 260         return True;
 261 }
 262
 263 WERROR _dfs_Enum(pipes_struct *p, NETDFS_Q_DFS_ENUM *q_u, NETDFS_R_DFS_ENUM *r_u)
 264 {
 265         uint32 level = q_u->level;
 266         struct junction_map jn[MAX_MSDFS_JUNCTIONS];
 267         int num_jn = 0;
 268         int i;
 269
 270         num_jn = enum_msdfs_links(p->mem_ctx, jn, ARRAY_SIZE(jn));
 271         vfs_ChDir(p->conn,p->conn->connectpath);
 272
 273         DEBUG(5,("make_reply_dfs_enum: %d junctions found in Dfs, doing level %d\n", num_jn, level));
 274
 275         r_u->ptr0_info = q_u->ptr0_info;
 276         r_u->ptr0_total = q_u->ptr0_total;
 277         r_u->total = num_jn;
 278
 279         r_u->info = q_u->info;
 280
 281         /* Create the return array */
 282         switch (level) {
 283         case 1:
 284                 if ((r_u->info.e.u.info1.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO1, num_jn)) == NULL) {
 285                         return WERR_NOMEM;
 286                 }
 287                 r_u->info.e.u.info1.count = num_jn;
 288                 r_u->info.e.u.info1.ptr0_s = 1;
 289                 r_u->info.e.u.info1.size_s = num_jn;
 290                 break;
 291         case 2:
 292                 if ((r_u->info.e.u.info2.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO2, num_jn)) == NULL) {
 293                         return WERR_NOMEM;
 294                 }
 295                 r_u->info.e.u.info2.count = num_jn;
 296                 r_u->info.e.u.info2.ptr0_s = 1;
 297                 r_u->info.e.u.info2.size_s = num_jn;
 298                 break;
 299         case 3:
 300                 if ((r_u->info.e.u.info3.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO3, num_jn)) == NULL) {
 301                         return WERR_NOMEM;
 302                 }
 303                 r_u->info.e.u.info3.count = num_jn;
 304                 r_u->info.e.u.info3.ptr0_s = 1;
 305                 r_u->info.e.u.info3.size_s = num_jn;
 306                 break;
 307         default:
 308                 return WERR_INVALID_PARAM;
 309         }
 310
 311         for (i = 0; i < num_jn; i++) {
 312                 switch (level) {
 313                 case 1:
 314                         init_reply_dfs_info_1(&jn[i], &r_u->info.e.u.info1.s[i]);
 315                         break;
 316                 case 2:
 317                         init_reply_dfs_info_2(&jn[i], &r_u->info.e.u.info2.s[i]);
 318                         break;
 319                 case 3:
 320                         init_reply_dfs_info_3(p->mem_ctx, &jn[i], &r_u->info.e.u.info3.s[i]);
 321                         break;
 322                 default:
 323                         return WERR_INVALID_PARAM;
 324                 }
 325         }
 326
 327         r_u->status = WERR_OK;
 328
 329         return r_u->status;
 330 }
 331
 332 WERROR _dfs_GetInfo(pipes_struct *p, NETDFS_Q_DFS_GETINFO *q_u,
 333                      NETDFS_R_DFS_GETINFO *r_u)
 334 {
 335         UNISTR2* uni_path = &q_u->path;
 336         uint32 level = q_u->level;
 337         int consumedcnt = sizeof(pstring);
 338         pstring path;
 339         BOOL ret;
 340         struct junction_map jn;
 341
 342         unistr2_to_ascii(path, uni_path, sizeof(path)-1);
 343         if(!create_junction(path, &jn))
 344                 return WERR_DFS_NO_SUCH_SERVER;
 345
 346         /* The following call can change the cwd. */
 347         if(!get_referred_path(p->mem_ctx, path, &jn, &consumedcnt, NULL) || consumedcnt < strlen(path)) {
 348                 vfs_ChDir(p->conn,p->conn->connectpath);
 349                 return WERR_DFS_NO_SUCH_VOL;
 350         }
 351
 352         vfs_ChDir(p->conn,p->conn->connectpath);
 353         r_u->info.switch_value = level;
 354         r_u->info.ptr0 = 1;
 355         r_u->status = WERR_OK;
 356
 357         switch (level) {
 358                 case 1: ret = init_reply_dfs_info_1(&jn, &r_u->info.u.info1); break;
 359                 case 2: ret = init_reply_dfs_info_2(&jn, &r_u->info.u.info2); break;
 360                 case 3: ret = init_reply_dfs_info_3(p->mem_ctx, &jn, &r_u->info.u.info3); break;
 361                 default:
 362                         ret = False;
 363                         break;
 364         }
 365
 366         if (!ret)
 367                 r_u->status = WERR_INVALID_PARAM;
 368
 369         return r_u->status;
 370 }
 371
 372 WERROR _dfs_SetInfo(pipes_struct *p, NETDFS_Q_DFS_SETINFO *q_u, NETDFS_R_DFS_SETINFO *r_u)
 373 {
 374         /* FIXME: Implement your code here */
 375         return WERR_NOT_SUPPORTED;
 376 }
 377
 378 WERROR _dfs_Rename(pipes_struct *p, NETDFS_Q_DFS_RENAME *q_u, NETDFS_R_DFS_RENAME *r_u)
 379 {
 380         /* FIXME: Implement your code here */
 381         return WERR_NOT_SUPPORTED;
 382 }
 383
 384 WERROR _dfs_Move(pipes_struct *p, NETDFS_Q_DFS_MOVE *q_u, NETDFS_R_DFS_MOVE *r_u)
 385 {
 386         /* FIXME: Implement your code here */
 387         return WERR_NOT_SUPPORTED;
 388 }
 389
 390 WERROR _dfs_ManagerGetConfigInfo(pipes_struct *p, NETDFS_Q_DFS_MANAGERGETCONFIGINFO *q_u, NETDFS_R_DFS_MANAGERGETCONFIGINFO *r_u)
 391 {
 392         /* FIXME: Implement your code here */
 393         return WERR_NOT_SUPPORTED;
 394 }
 395
 396 WERROR _dfs_ManagerSendSiteInfo(pipes_struct *p, NETDFS_Q_DFS_MANAGERSENDSITEINFO *q_u, NETDFS_R_DFS_MANAGERSENDSITEINFO *r_u)
 397 {
 398         /* FIXME: Implement your code here */
 399         return WERR_NOT_SUPPORTED;
 400 }
 401
 402 WERROR _dfs_AddFtRoot(pipes_struct *p, NETDFS_Q_DFS_ADDFTROOT *q_u, NETDFS_R_DFS_ADDFTROOT *r_u)
 403 {
 404         /* FIXME: Implement your code here */
 405         return WERR_NOT_SUPPORTED;
 406 }
 407
 408 WERROR _dfs_RemoveFtRoot(pipes_struct *p, NETDFS_Q_DFS_REMOVEFTROOT *q_u, NETDFS_R_DFS_REMOVEFTROOT *r_u)
 409 {
 410         /* FIXME: Implement your code here */
 411         return WERR_NOT_SUPPORTED;
 412 }
 413
 414 WERROR _dfs_AddStdRoot(pipes_struct *p, NETDFS_Q_DFS_ADDSTDROOT *q_u, NETDFS_R_DFS_ADDSTDROOT *r_u)
 415 {
 416         /* FIXME: Implement your code here */
 417         return WERR_NOT_SUPPORTED;
 418 }
 419
 420 WERROR _dfs_RemoveStdRoot(pipes_struct *p, NETDFS_Q_DFS_REMOVESTDROOT *q_u, NETDFS_R_DFS_REMOVESTDROOT *r_u)
 421 {
 422         /* FIXME: Implement your code here */
 423         return WERR_NOT_SUPPORTED;
 424 }
 425
 426 WERROR _dfs_ManagerInitialize(pipes_struct *p, NETDFS_Q_DFS_MANAGERINITIALIZE *q_u, NETDFS_R_DFS_MANAGERINITIALIZE *r_u)
 427 {
 428         /* FIXME: Implement your code here */
 429         return WERR_NOT_SUPPORTED;
 430 }
 431
 432 WERROR _dfs_AddStdRootForced(pipes_struct *p, NETDFS_Q_DFS_ADDSTDROOTFORCED *q_u, NETDFS_R_DFS_ADDSTDROOTFORCED *r_u)
 433 {
 434         /* FIXME: Implement your code here */
 435         return WERR_NOT_SUPPORTED;
 436 }
 437
 438 WERROR _dfs_GetDcAddress(pipes_struct *p, NETDFS_Q_DFS_GETDCADDRESS *q_u, NETDFS_R_DFS_GETDCADDRESS *r_u)
 439 {
 440         /* FIXME: Implement your code here */
 441         return WERR_NOT_SUPPORTED;
 442 }
 443
 444 WERROR _dfs_SetDcAddress(pipes_struct *p, NETDFS_Q_DFS_SETDCADDRESS *q_u, NETDFS_R_DFS_SETDCADDRESS *r_u)
 445 {
 446         /* FIXME: Implement your code here */
 447         return WERR_NOT_SUPPORTED;
 448 }
 449
 450 WERROR _dfs_FlushFtTable(pipes_struct *p, NETDFS_Q_DFS_FLUSHFTTABLE *q_u, NETDFS_R_DFS_FLUSHFTTABLE *r_u)
 451 {
 452         /* FIXME: Implement your code here */
 453         return WERR_NOT_SUPPORTED;
 454 }
 455
 456 WERROR _dfs_Add2(pipes_struct *p, NETDFS_Q_DFS_ADD2 *q_u, NETDFS_R_DFS_ADD2 *r_u)
 457 {
 458         /* FIXME: Implement your code here */
 459         return WERR_NOT_SUPPORTED;
 460 }
 461
 462 WERROR _dfs_Remove2(pipes_struct *p, NETDFS_Q_DFS_REMOVE2 *q_u, NETDFS_R_DFS_REMOVE2 *r_u)
 463 {
 464         /* FIXME: Implement your code here */
 465         return WERR_NOT_SUPPORTED;
 466 }
 467
 468 WERROR _dfs_EnumEx(pipes_struct *p, NETDFS_Q_DFS_ENUMEX *q_u, NETDFS_R_DFS_ENUMEX *r_u)
 469 {
 470         /* FIXME: Implement your code here */
 471         return WERR_NOT_SUPPORTED;
 472 }
 473
 474 WERROR _dfs_SetInfo2(pipes_struct *p, NETDFS_Q_DFS_SETINFO2 *q_u, NETDFS_R_DFS_SETINFO2 *r_u)
 475 {
 476         /* FIXME: Implement your code here */
 477         return WERR_NOT_SUPPORTED;
 478 }
 479